(19)

(11)

EP 0 277 149 A1

(12)

(43) Date of publication: 10.08.1988 Bulletin 1988/32 (21) Application number: 87904457.0 (22) Date of filing: 24.06.1987

(51) International Patent Classification (IPC):  B03C 1/ 28( . ) G01V 3/ 08( . ) (86) International application number: PCT/US1987/001481 (87) International publication number: WO 1988/000083 (14.01.1988 Gazette 1988/02)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 26.06.1986 US 19860878792 (71) Applicant: TALIAFERRO, Sam W. Breckenridge, CO 80424 (US)	(72) Inventor: TALIAFERRO, Sam W. Breckenridge, CO 80424 (US) (74) Representative: Knott, Stephen Gilbert  MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge Middlesex UB10 8BZ Ickenham Uxbridge Middlesex UB10 8BZ (GB)